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Long-Awaited Study Results on Vitamin D and Fish Oil Supplements

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Re: Long-Awaited Study Results on Vitamin D and Fish Oil Supplements

#181

Post by bradleyjg »

shard wrote: post #135
ztjio wrote: post #116

Earlier quoted context omitted.

I get your joke but the concern he expresses is only relevant to the Omega-3. In the case of vitamin D, outside of sunlight exposure, supplements are basically your only practical option. Furthermore, the foods mentioned often have it added (milk nearly always does) and so one would want to be aware of that before adding it further from another supplement. At worst, the paragraph is just a poorly constructed catch al…

Here are my concerns with their statement: First, I recall warnings about too much fish consumption due to mercury levels in the fish. So how much fish consumption is necessary to get the required omega 3 and does the benefits balance out over the harm caused by the mercury? And are there any particular kinds of fish to consume to limit mercury exposure while getting the benefits of omega 3? Second, as far as I know…

> And are there any particular kinds of fish to consume to limit mercury exposure while getting the benefits of omega 3?

Mercury bioaccumulates in the ecosystem. That means higher levels in fish that eat fish, and highest levels in fish that eat fish that eat fish. It also accumulates over a lifetime, so longer lived fish have higher levels.

Farmed fish (in this US mostly tilapia and salmon) have other issues, but mercury isn't a generally concern. For wild fish, the small ones--anchovies, herring, sardines--are low in mercury, along with catfish, pollock, shad, and haddock.

The worst for mercury that are widely eaten are tuna (sushi or steak grade, the species they used for canned tuna aren't as bad), certain types of mackerel, and grouper.

Re: Long-Awaited Study Results on Vitamin D and Fish Oil Supplements

#182

Post by mark_l_watson »

I admit to some confusion: my wife and I take omega-3 supplements, eat fatty fish, and take vitamins D supplements because of the purported increase in brain health.

Still, a 25% decrease in heart decease for African Americans and people who don’t eat fatty fish is a good result.

Also, re: “That includes eating fatty fish like sardines, tuna and salmon, and vitamin-D fortified cereals, milk, and orange juice.” I don’t like breakfast cereals, to many carbs, I prefer my morning carbs from steamed cauliflower, broccoli, etc. I decided to cut out dairy partly for health reasons and partly because of animal cruelty. I hate drinking commercially packaged orange juice, tastes like sugar. A fresh orange is tasty but does does not have artificially added vitamin D - so take vitamin D pills.

I am in my mid 60s and felt tired and low energy earlier this year. My doctor tested vitamin D levels, put me on vitamin D pills, and I literally felt good again within a week.

Re: Long-Awaited Study Results on Vitamin D and Fish Oil Supplements

#183

Post by albedoa »

raspasov wrote: post #111

Sooooooo... I did a little bit of digging here. 3 studies: ------------------- 1st study about Vitamin D https://clinicaltrials.gov/ct2/show/NCT01169259 2nd study about fish oil with a low dose, 1 gram https://clinicaltrials.gov/ct2/show/NCT01169259 3rd study about a PROPRIETARY PRESCRIPTION variation of fish oil with a HIGH DOSE https://clinicaltrials.gov/ct2/show/record/NCT01492361 Results: --------------------- 1s…

It is unclear what your suspicions are. You capitalized a bunch of words and concluded with "Total fraudsters". Can you tell us your specific issues with the studies?

Re: Long-Awaited Study Results on Vitamin D and Fish Oil Supplements

#184

Post by cies »

raverbashing wrote: post #145
cies wrote: post #141

Earlier quoted context omitted.

All O3 comes from algae, fish merely accumulate. One could also get algae based supplement. It's animal friendly and possibly less contaminated (fish are much polluted nowadays). https://en.wikipedia.org/wiki/Fish_oil I read there: """The fish used as sources do not actually produce omega-3 fatty acids, but instead accumulate them by consuming either microalgae or prey fish that have accumulated omega-3 fatty acids."…

Thanks for the info, it's interesting that Algae produce (fish) Omega-3, whereas land-based plants produce only ALA and not EPA/DHA

And your brain consists of a lot of DHA. ALA->EPA->DHA conversion is minimal, and depends on many factors (which are basically showing that we need to be healthy).

Re: Long-Awaited Study Results on Vitamin D and Fish Oil Supplements

#185

Post by oAlbe »

coldtea wrote: post #176
y4mi wrote: post #164

Earlier quoted context omitted.

you're talking about different things... fresh tuna is pretty expensive. its just the cans that are dirt cheap

I see. But you can get your precious oils (or mercury) from either, right?

Not sure about the oils/omega-3, but the fish used to make the canned tuna is generally regarded as a much lower source of mercury compared to, say, the tuna used for sushi, and thus safer to eat.

Re: Long-Awaited Study Results on Vitamin D and Fish Oil Supplements

#186

Post by cies »

coldtea wrote: post #160
speedplane wrote: post #140

Earlier quoted context omitted.

But why drink juice when you can have the full fruit/vegetable? There is way more fiber, you fill up faster, and often it tastes better.

Not to people used to adding tons of sugar and syrups in their "juices"

That's not a juice anymore. Then I'd call it lemonade. :)

Re: Long-Awaited Study Results on Vitamin D and Fish Oil Supplements

#187

Post by resters »

Fnoord wrote: post #136
koboll wrote: post #110

Earlier quoted context omitted.

This is absolutely a clickbait title. A better one would be something like "Landmark Study On Fish Oil and Vitamin D Shows Fish Oil Reduces Heart Attacks, But Few Other Benefits"

Orig title was: "Vitamin D And Fish Oil Supplements Disappoint In Long-Awaited Study Results" Current title is: "Long-Awaited Study Results on Vitamin D and Fish Oil Supplements" The current title doesn't contain the conclusion which is much more neutral and invites for more reading. The current title is not clickbait.

It was fixed after my comment.

Re: Long-Awaited Study Results on Vitamin D and Fish Oil Supplements

#188

Post by cies »

JanSt wrote: post #147
cies wrote: post #139

Earlier quoted context omitted.

> Consuming large amounts of juice might have been the trigger for diabetic conditions in a family member. I believe this is only possible when on a diet that's >10cal% fat. When your fat intake is very low (like the fruit binging chimps/utangs/bonobos), and your cells are (thus) properly sensitive to insulin, you will not suffer from lots of sugar in fruit juice. Fibers help making it digest slower, and will reduce…

Fructose does not raise blood sugar (!) but can lead to NAFLD. Bananas have a relatively low GI. Fat is not the enemy!

> Fructose does not raise blood sugar (!)

It does, but in the absence of fat (>10cal%) in the diet it does not raise it in a significant way.

> but can lead to NAFLD

Do you have a source for that? Here a pretty comprehensive breakdown of the ways NAFLD can come about. https://nutritionfacts.org/video/prevent-non-alcoholic-fatty...

Re: Long-Awaited Study Results on Vitamin D and Fish Oil Supplements

#189

Post by cies »

speedplane wrote: post #144
cies wrote: post #137

Earlier quoted context omitted.

> mercury levels in the fish Better not to eat fish at all, as one small bit of tuna (for instance) per week already increases the mercury build up in the body. https://nutritionfacts.org/topics/fish/ Also, you can get high DHA omega 3 supplements made from algae. https://nutritionfacts.org/video/should-we-take-epa-and-dha-...

Tuna is nice and fancy (and expensive). Few eat it every day. Tilapia is cheap, sustainable, and has low mercury. I’m no nutritionist, but what’s the big deal with eating tuna every now and again, but mostly sticking to smaller fish?

> what’s the big deal with eating tuna every now and again

Once a week builds up merc in the body. Merc is toxic. That's the big deal. Smaller fish have less of this problem, but still add to it. Better avoid most fish at this point, we've destroyed the oceans to much, sadly.

https://nutritionfacts.org/video/which-brand-of-tuna-has-the...

Re: Long-Awaited Study Results on Vitamin D and Fish Oil Supplements

#190

Post by scrollbar »

bradleyjg wrote: post #181
shard wrote: post #135

Earlier quoted context omitted.

Here are my concerns with their statement: First, I recall warnings about too much fish consumption due to mercury levels in the fish. So how much fish consumption is necessary to get the required omega 3 and does the benefits balance out over the harm caused by the mercury? And are there any particular kinds of fish to consume to limit mercury exposure while getting the benefits of omega 3? Second, as far as I know…

> And are there any particular kinds of fish to consume to limit mercury exposure while getting the benefits of omega 3? Mercury bioaccumulates in the ecosystem. That means higher levels in fish that eat fish, and highest levels in fish that eat fish that eat fish. It also accumulates over a lifetime, so longer lived fish have higher levels. Farmed fish (in this US mostly tilapia and salmon) have other issues, but me…

> Farmed fish (in this US mostly tilapia and salmon) have other issues, but mercury isn't a generally concern.

I'm an amateur Bay Area fisherman, so as someone eating fish out of the Bay, am often studying up on mercury and PCB levels in species. My understanding is this is not true- farmed salmon are often fed baitfish meal (sardine/anchovy etc). They eat orders of magnitude higher quantities of these fish than they would in the wild, so they bioaccumulate more toxins than they would outside the farm. Let me see if I can find a source.

Some quick googling returns sources supporting both sides, so I'd take either position with a grain of salt.

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